1010200091 has 2 divisors, whose sum is σ = 1010200092. Its totient is φ = 1010200090.

The previous prime is 1010200063. The next prime is 1010200109. The reversal of 1010200091 is 1900020101.

Together with next prime (1010200109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1010200091 - 2¹⁰ = 1010199067 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1010200391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505100045 + 505100046.

It is an arithmetic number, because the mean of its divisors is an integer number (505100046).

Almost surely, 2^1010200091 is an apocalyptic number.

1010200091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010200091 is an equidigital number, since it uses as much as digits as its factorization.

1010200091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1010200091 is about 31783.6450238169. The cubic root of 1010200091 is about 1003.3885351933.

Adding to 1010200091 its reverse (1900020101), we get a palindrome (2910220192).

The spelling of 1010200091 in words is "one billion, ten million, two hundred thousand, ninety-one".